Rocking Chair for Children

ABSTRACT

A rocking chair for children, comprising a seat body, a supporting frame and a seat body limiting mechanism, a driving motor, a driving motor power output part and a rotating shaft; one end of the rotating shaft is fixedly connected to the driving motor power output part, and the seat body pivots around the other end of the rotating shaft; when the rotating shaft rotates, the pivot point between the other end of the rotating shaft and the seat body moves relative to a fixed connection point between one end of the rotating shaft and the driving motor power output part at a certain distance; and the seat body limiting mechanism can limit the included angle between the seat body and the rotating shaft to be kept within a set angle when the driving motor drives the rotating shaft for forward and reverse rotation in a reciprocating mode.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a Continuation Application of PCT ApplicationNo. PCT/CN2021/080922 filed on Mar. 16, 2021, which claims the benefitof Chinese Patent Application No. 202010197938.2 filed on Mar. 19, 2020.All the above are hereby incorporated by reference in their entirety.

FIELD OF THE INVENTION

The invention relates to a rocking chair for children.

BACKGROUND OF THE INVENTION

For families with infants and young children, in order to take care ofchildren and have time to work or do housework, the parents have theurgent need to place their children on rocking chairs for children whichare low in cost and large in swing range and can swing, especially placetheir children on rocking chairs for children which are low in cost andlarge in swing range and have various swing modes. A rocking chair witha seat and a rotating shaft fixed is available in the market, the seatrotates along with the rotating shaft, but children are easy to feeldizzy and uncomfortable. A rocking chair with two Z-shaped rotatingshafts is available in the market, a seat body and the two rotatingshafts are movably connected and the seat body swings in a distancerelative to a supporting frame. However, the problems that the movementrange is not large, the technological requirements of a seat bodysupporting seat, the shafts and a supporting frame are very high whenthe seat body rotates along with the two shafts, the cost is high, andonly a single swing mode can be carried out due to the fact that the twoshafts rotate exist. At present, a rocking chair for children which islarge in swing range, low in cost and single in swing mode is needed inthe market, and a rocking chair for children which is large in swingrange and low in cost and can achieve two different swing modes at thesame time is also needed.

SUMMARY OF INVENTION

The invention aims to provide a rocking chair for children, which islarge in swing range, low in cost and capable of realizing one swingmode, and also provide a rocking chair for children, which is large inswing range, low in cost, and capable of realizing two swing modes atthe same time.

The Invention is Realized Through the Following Technical Solution:

A rocking chair for children includes a seat body, a supporting frameand a seat body limiting mechanism, the supporting frame includes adriving mechanism, the driving mechanism includes a driving motor, adriving motor power output part and a rotating shaft, the seat body isused for carrying a child, there is only one rotating shaft whichindependently supports the seat body, one end of the rotating shaftpivots around the supporting frame and is fixedly connected with thedriving power output part, the other end of the rotating shaft pivotsaround the seat body, and a perpendicular line of a pivot point of therotating shaft and the supporting frame and the ground deviates from aperpendicular line of a pivot point of the rotating shaft and the seatbody and the ground; the seat body limiting mechanism includes alimiting piece and a limiting matching piece matched with the limitingpiece, the limiting piece is movably connected with the limitingmatching piece, when the rotating shaft rotates, the rotating shaft andthe seat body rotate relatively, and the seat body limiting mechanismlimits the included angle between the seat body and the rotating shaftto be kept at a set angle.

As further optimization of the technology, the limiting piece and thelimiting matching piece are movably connected in a relative distancemoving mode, and when the rotating shaft rotates, the limiting piece andthe limiting matching piece move relatively at a certain distance so asto limit the included angle between the seat body and the rotating shaftto be kept at a set angle.

As further optimization of the technology, the limiting piece isconnected with the seat body, and the limiting matching piece isarranged on the supporting frame.

As further optimization of the technology, a perpendicular line of aconnecting point of the limiting piece and the seat body and the grounddeviates from a perpendicular line of a pivot point of the other end ofthe rotating shaft and the seat body and the ground.

As further optimization of the technology, the supporting frame includesa base and a mounting box, the mounting box is connected with the base,the limiting piece is a moving piece, the limiting matching piece is amoving groove, when the rotating shaft rotates, the moving piece movesrelative to the moving groove. The moving piece is arranged on the seatbody, the moving groove matched with the moving piece is formed in themounting box, and when the rotating shaft rotates, the limiting piecemoves relative to the limiting matching piece at a certain distancealong with the seat body.

As further optimization of the technology, a rotating piece is arrangedon the moving piece, the rotating piece is able to rotate around themoving piece, and the rotating piece is in surface fit with the movinggroove.

According to a preferred implementation mode, a motion track line of themoving piece moving from a starting point to an end point of the movinggroove is an arc line; a perpendicular line of a highest point of thearc line and a connecting line of two end points of the arc line isshorter than a perpendicular line of a highest point of an arc lineformed when the rotating shaft swings from a starting point to an endpoint and a connecting line of two end points of the arc line, and themoving groove is an arc-shaped groove.

As another implementation mode, a motion track line of the moving piecemoving from a starting point to an end point of the moving groove is anarc line; the length of a perpendicular line of a highest point of thearc line and a connecting line of two end points of the arc line is thesame as the length of a perpendicular line of a highest point of an arcline formed when the rotating shaft swings from a starting point to anend point and a connecting line of two end points of the arc line, andthe moving groove is an arc-shaped groove.

As another implementation mode, when the rotating shaft swings from thestarting point to the end point, the motion track line formed when themoving piece moves from the starting point to the end point of themoving groove is a straight line, and the moving groove is a lineargroove.

As further optimization of the technology, a matching point of themoving piece and the moving groove and the moving groove are distributedon one side of the rotating shaft.

As further optimization of the technology, a connecting line of aconnecting point of the moving piece and the seat body and a pivot pointof the seat body and the rotating shaft is perpendicular to aperpendicular line of the pivot point of the seat body and the rotatingshaft and the ground; the connecting line of the connecting point of themoving piece and the seat body and the pivot point of the seat body andthe rotating shaft is perpendicular to a connecting line of a matchingpoint of the moving piece and the moving groove and the connecting pointof the moving piece and the seat body.

As further optimization of the technology, when the seat body moves leftand right, the moving groove is an inclined-plane groove, and theinclined-plane groove obliquely faces the rear direction of the seatbody.

As further optimization of the technology, the moving groove is anarc-shaped groove or an irregular wavy groove with alternating heights,and the moving groove is roughly and symmetrically formed in the twosides of a projection line, on the mounting box, of the rotating shaftwhen the rotating shaft rotates to the highest position.

As further optimization of the technology, the moving groove is arrangedclose to a pivot point of the rotating shaft and the mounting box.

As further optimization of the technology, the driving mechanism furtherincludes a sensor arranged on the driving motor and a reduction gear setconnected to the driving motor, and the sensor is able to control thedriving motor to continuously rotate forwards and backwards in areciprocating mode so that the rotating shaft is able to continuouslyrotate forwards and backwards in a reciprocating mode, and the rotatingshaft is obliquely arranged on the mounting box.

As further optimization of the technology, two rotating pieces arearranged on the moving piece, and two moving grooves correspondinglymatched with the two rotating pieces are formed in the mounting box.

Compared With the Prior Art, the Invention has the Following Advantages:

The seat body is independently supported by one rotating shaft, the seatbody and the rotating shaft rotate flexibly, and the defects thatinterference is caused when the seat body is pivoted through two shafts,the requirement for technology is high, and the swing range is small areovercome. According to the rocking chair for children, the limitingpiece and the limiting matching piece move relatively at a certaindistance to limit the angle required by the seat body and the rotatingshaft, so that different angles are set through the seat body and therotating shaft when the rotating shaft rotates, one swing mode can berealized, and the rocking chair for children has the characteristics oflarge swing range, low cost, simple structure and stable seat body; therocking chair for children can realize two different swing modes at thesame time, and has the characteristics of large swing range, low cost,simple structure and stable seat body.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly explain the technical solution of theembodiment of the invention, the following will be briefly introduced incombination with the accompanying drawings. It is obvious that theaccompanying drawings in the following description are only the specificembodiments of the invention, and for those skilled in the field, on thepremise that creative labor is not paid, other drawings can be obtainedaccording to the drawings.

FIG. 1 is a structural schematic diagram of the rocking chair forchildren.

FIG. 2 is a structural schematic diagram of the rocking chair forchildren swinging from the starting point.

FIG. 3 is a structural schematic diagram of the rocking chair forchildren swinging to the midpoint.

FIG. 4 is an explosion schematic diagram of the rocking chair forchildren.

FIG. 5 is a sectional diagram of the moving groove of the rocking chairfor children.

FIG. 6 is a structural schematic diagram of the rocking chair forchildren that the moving groove is close to the pivot point of therotating shaft and the mounting box.

FIG. 7 is a structural schematic diagram that the seat body of therocking chair for children swings to the left direction.

FIG. 8 is a structure schematic diagram that the seat body of therocking chair for children swings to the right direction.

FIG. 9 is an explosion diagram of FIG. 8.

FIG. 10 is an explosion diagram of FIG. 7.

FIG. 11 is a structural schematic diagram of limited matching of theseat body of the rocking chair for children.

FIG. 12 is an explosion schematic diagram of the irregular wave-shapedmoving groove structure of the rocking chair for children.

FIG. 13 is a structural schematic diagram that the rocking chair forchildren is provided with two rotating pieces.

FIG. 14 is a structural schematic diagram of the linear groove of therocking chair for children.

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

The embodiments of the invention are now described with reference toFIG. 1-FIG. 14.

A children rocking chair as shown in FIG. 1 is characterized byincluding a seat body 1, a supporting frame 2 and a seat body limitingmechanism 3, the supporting frame 2 includes a driving mechanism 4, thedriving mechanism 4 includes a driving motor 5, a driving motor poweroutput part 6 and a rotating shaft 7, the seat body 1 is used forcarrying a child, there is only one rotating shaft 7 which independentlysupports the seat body 1, one end of the rotating shaft 7 pivots aroundthe supporting frame 2 and is fixedly connected with the driving poweroutput part 6, the other end of the rotating shaft 7 pivots around theseat body 1, and a perpendicular line of a pivot point of the rotatingshaft 7 and the supporting frame 2 and the ground deviates from aperpendicular line of a pivot point of the rotating shaft 7 and the seatbody 1 and the ground; the seat body limiting mechanism 3 includes alimiting piece 9 and a limiting matching piece 10 matched with thelimiting piece 9, the limiting piece 9 is movably connected with thelimiting matching piece 10, when the rotating shaft 7 rotates, therotating shaft 7 and the seat body 1 rotate relatively, and the seatbody limiting mechanism 3 limits the included angle between the seatbody 1 and the rotating shaft 7 to be kept at a set angle.

As shown in FIG. 1 and FIG. 11, the limiting piece 9 and the limitingmatching piece 10 are movably connected in a relative distance movingmode, and when the rotating shaft 7 rotates, the limiting piece 9 andthe limiting matching piece 10 move relatively at a certain distance soas to limit the included angle between the seat body 1 and the rotatingshaft 7 to be kept at a set angle. The limiting piece 9 and the limitingmatching piece 10 move at a certain distance, the limited angle is keptby the limiting piece 9 and the rotating shaft 7, the function isachieved more easily, and the structure is simpler.

As shown in FIG. 1, the limiting piece 9 is connected with the seat body1, a perpendicular line between a connecting point of the limiting piece9 and the seat body 1 and the ground deviates from a perpendicular linebetween a pivot point of the other end of the rotating shaft 7 and theseat body 1 and the ground, and the limiting matching piece 10 isarranged on the supporting frame 2. The above is a preferred solutionwhich has the advantage that when the rotating shaft 7 rotates, and thelimiting piece 9 moves relative to the limiting matching piece 10 at acertain distance along with the seat body 1, the moving piece 9 on theseat body 1 always keeps a fixed distance with the pivot point of therotating shaft 7 and the seat body 1 so as to prevent the seat body 1from rotating around the rotating shaft 7, the connection between thelimiting piece 9 and the seat body 1 deviates from a rotation axis togenerate a force arm, and when the limiting piece 9 moves relative tothe limiting matching piece 10 at a certain distance, it is morelabor-saving to limit the angle set between the seat body 1 and therotation shaft 7, so that the rotating shaft 7 swings more smoothly, andmeanwhile, the force arm makes the seat body 1 more stable. The settingpositions of the limiting piece 9 and the limiting matching piece 10 aredifferent, as shown in the FIG. 12, the limiting piece 9 is arranged onthe mounting box 8, and the limiting matching piece 10 is movablyconnected with the seat body 1, therefore, either case belongs to theprotection scope of the invention.

As shown in FIG. 1, the supporting frame 2 includes a base 14 and amounting box 8, the mounting box 8 is connected with the base 14, thelimiting piece 9 is a moving piece 9, the limiting matching piece 10 isa moving groove 10, when the rotating shaft 7 rotates, the moving piece9 moves relative to the moving groove 10, the moving piece 9 is limitedthrough the moving groove 10, the structure is simple, andimplementation is easy. The moving piece 9 is arranged on the seat body1, the moving groove 10 matched with the moving piece 9 is formed in themounting box 8, the moving piece 9 is connected with the seat body 1,and the structure is simple by arranging the moving groove 10 in themounting box 8.

As shown in FIG. 4, a rotating piece 11 is arranged on the moving piece9, the rotating piece 11 can rotate around the moving piece 9, therotating piece 11 is in surface fit with the moving groove 10, therotating piece 11 is arranged on the moving groove 10 as to be insurface fit with the moving groove 10, the friction is reduced, therocking chair for children swings smoothly, there are various kinds ofrotating pieces 11, and the rotating piece 11 arranged on the movingpiece 9 is a bearing.

Preferably, the moving groove 10 is an arc-shaped groove, when therotating shaft 7 rotates from low to high and then to low, thearc-shaped groove is arranged from low to high and then to low, as shownin FIG. 1, when the rotating shaft 7 is at the low position, the movingpiece 9 of the moving groove 10 is also at the low position, as shown inFIG. 2, when the rotating shaft 7 rotates to the high position, themoving piece 9 is also at the high position of the moving groove 10, asshown in FIG. 3, when the rotating shaft 7 is at the low position, themoving piece 9 of the moving groove 10 is also at the low position, asshown in FIG. 1, FIG. 2 and FIG. 3, the rotating shaft 7 moves from thestarting point to the end point from the low position to the highposition and then to the low position, and the moving piece 9 moves fromthe low position to the high position and then to the low position. Themoving groove 10 as shown in FIG. 1, FIG. 2 and FIG. 3 is an arc-shapedgroove. When the rotating shaft 7 rotates, the seat body 1 does not haveangle change relative to the supporting frame 2 along with the swingingof the rotating shaft 7 and only has distance movement swinging relativeto the supporting frame 2, the moving groove 10 as shown in FIG. 9 andFIG. 10 is an arc-shaped groove, and a preferable solution as shown inFIG. 10 has the advantage that the moving groove 10 becomes flatter andis close to a straight line, so that the rotating shaft 7 is smoother.From FIG. 7 to FIG. 10, the seat body 1 not only swings back and forthin a distance moving mode relative to the supporting frame 2, but alsoswings left and right in an angle changing mode relative to thesupporting frame 2, so that two different swing modes can be realized atthe same time, the characteristics of low cost and good function arerealized, and the moving groove 10 has various shapes, and any shapebelongs to the protection range of the invention.

The motion track line of the moving piece 9 moving from the startingpoint to the end point of the moving groove 10 is an arc line, aperpendicular line of a highest point of the arc line and a connectingline of two end points of the arc line is shorter than a perpendicularline of a highest point of an arc line formed when the rotating shaft 7swings from a starting point to an end point and a connecting line oftwo end points of the arc line, and the moving groove 10 is anarc-shaped groove. As a preferred implementation mode, the moving groove10 is an arc-shaped groove as shown in FIG. 9 and FIG. 10, and FIG. 10shows a preferred solution which has the advantages that the radian ofthe arc line of the moving groove 10 is reduced, so that the rotatingshaft 7 is smoother, and FIG. 7 to FIG. 10 indicate that the seat body 1swings back and forth in a distance moving mode relative to thesupporting frame 2 and swings left and right in an angle changing moderelative to the supporting frame 2; therefore, two different swing modescan be achieved at the same time, the advantages of being low inachieving cost and good in function are achieved, the moving groove 10has various shapes, and any shape belongs to the protection range of theinvention.

The motion track line of the moving piece 9 moving from a starting pointto an end point of the moving groove 10 is an arc line; the length of aperpendicular line of a highest point of the arc line and a connectingline of two end points of the arc line is the same as the length of aperpendicular line of a highest point of an arc line formed when therotating shaft 7 swings from a starting point to an end point and aconnecting line of two end points of the arc line and the moving groove10 is an arc-shaped groove. In another implementation mode, as shown inFIG. 1, the moving piece 9 of the moving groove 10 is also low when therotating shaft 7 is at a low position, as shown in FIG. 2, the movingpiece 9 is also high in the moving groove 10 when the rotating shaft 7is rotated to a high position, as shown in FIG. 3, the moving piece 9 ofthe moving groove 10 is also low when the rotating shaft 7 is at a lowposition, FIG. 1, FIG. 2, and FIG. 3 refer to the motion process of therotating shaft 7 from the starting point to the end point from the lowposition to the high position and then to the low position, and alsorefer to the motion process of the moving piece 9 from the low positionto the high position and then to the low position. When the rotatingshaft 7 rotates, the seat body 1 does not have angle change relative tothe supporting frame 2 along with the swinging of the rotating shaft 7and only has distance moving swinging relative to the supporting frame2, the moving groove 10 can be in various shapes such as a wave-shapedgroove in the FIG. 12 and a U-shaped groove or a V-shaped groove, andthe protection range of the device is not affected no matter which shapeis.

Another implementation mode is shown in FIG. 14, when the rotating shaft7 swings from the starting point to the end point, a motion track lineformed by the moving piece 9 moving from the starting point to the endpoint of the moving groove 10 is a straight line, and the moving groove10 is a linear groove, this is another implementation mode, when themoving groove 10 is a linear groove, the angle generated by the seatbody 1 relative to the supporting frame 2 is large.

As shown in the FIG. 1, the matching point of the moving piece 9 and themoving groove 10 and the moving groove 10 are distributed on one side ofthe rotating shaft 7, so that the seat body 1 is prevented from rotatingaround the rotating shaft 7.

As shown in FIG. 1, a connecting line between a connecting point of themoving piece 9 and the seat body 1 and a pivot point of the seat body 1and the rotating shaft 7 is perpendicular to a perpendicular linebetween the pivot point of the seat body 1 and the rotating shaft 7 andthe ground; a connecting line between the connecting point of the movingpiece 9 and the seat body 1 and the pivot point of the seat body 1 andthe rotating shaft 7 is perpendicular to a connecting line between amatching point of the moving piece 9 and the moving groove 10 and theconnecting point of the moving piece 9 and the seat body 1; only in thestate, the effect of limiting the seat body 1 to rotate around therotating shaft 7 is the best.

As shown in FIG. 5, when the seat body 1 moves left and right, themoving groove is an inclined-plane groove, and the inclined-plane grooveobliquely faces the rear direction of the seat body 1. Theinclined-plane groove is obliquely arranged towards the rear directionof the seat body 1 so as to prevent the seat body 1 from incliningbackwards after a child sits on the seat body 1, and after the seat body1 inclines backwards, the limiting piece 9 is clamped with the rotatingpiece 11 on the limiting piece 9. The inclined-plane groove obliquelyfaces the rear direction of the seat body 1 so that the seat body 1 canmove or swing smoothly.

As shown in the FIG. 6, the moving groove 10 is roughly andsymmetrically arranged on the two sides of the projection line, on themounting box 8, of the rotating shaft 7 when the rotating shaft 7rotates to the highest position, so that the layout of the moving groove10 on the mounting box 8 is reasonable, and the size of the mounting box8 is reduced.

The moving groove 10 is arranged close to the pivot point of therotating shaft 7 and the mounting box 8. Through the arrangement, thesize of the mounting box 8 is reduced, and the appearance of themounting box 8 is more attractive.

The driving mechanism 4 further includes a sensor 12 arranged on thedriving motor 5 and further includes a reduction gear set 13 connectedto the driving motor 5, and the sensor 12 can control the driving motor5 to continuously rotate forwards and backwards in a reciprocating mode,so that the rotating shaft 7 continuously rotates forwards and backwardsin a reciprocating mode. The rotating angle of the rotating shaft 7 andpositive and negative rotation of the driving motor 5 are detectedthrough the sensor 12, the moving distance of the seat body 1 iscontrolled, speed reduction and force increasing are achieved throughthe reduction gear set 13, the structure is simple, and cost is low. Therotating shaft 7 is obliquely arranged on the mounting box 8, the costcan be reduced through the arrangement of the driving mechanism 4, therotating shaft 7 is obliquely arranged on the mounting box 8 and ispivoted with the seat body 1, so that the seat body 1 generatesconversion of kinetic energy and potential energy, and the aim of savinglabor is achieved.

As shown in the FIG. 13, two rotating pieces 11 are arranged on themoving piece 9, two moving grooves 10 correspondingly matched with thetwo rotating pieces 11 are formed in the mounting box 8, and the tworotating pieces 11 are arranged to prevent the moving piece 9 fromrotating around the rotating shaft 7 along with the seat body 1 when themoving piece 9 moves relative to the moving grooves 10.

The rocking chair for children has the advantages that the swing rangeis large, the cost is low, the seat body 1 is stable, the structure issimple, meanwhile, two different swing modes can be set, and the defectsthat the swing range is small, the process requirement is high, and onlyone swinging function can be achieved in the market are overcome. Therocking chair is simple in structure and low in cost, the seat body 1 isstable, two different swing modes can be realized at the same time, andthe rocking chair is invented through long-term elaborate research ofengineers, is not easily thought by those skilled in the field and isnot common knowledge of the public. One end and the other end describedin the invention are only used to describe the name of the thing, whichcan be understood as the top of the thing or a section of the thing.

Although the invention has been described above with reference toembodiments, various improvements can be made without departing from thescope of the invention, and the invention can be implemented in otherways equivalent or well-known to those skilled in the art. Inparticular, as long as there is no structural conflict, the features inthe embodiments disclosed in the invention can be combined with eachother in any way. The description does not describe these combinationsexhaustively, just for the sake of omitting space and saving resources.Therefore, the invention is not limited to the specific embodimentsdisclosed herein, but includes all technical solutions falling withinthe scope of the claims.

1. A rocking chair for children, characterized by comprising a seatbody, a supporting frame and a seat body limiting mechanism, wherein thesupporting frame comprises a driving mechanism, the driving mechanismcomprises a driving motor, a driving motor power output part and arotating shaft, the seat body is used for carrying a child, there isonly one rotating shaft which independently supports the seat body, oneend of the rotating shaft pivots around the supporting frame and isfixedly connected with the driving power output part, another end of therotating shaft pivots around the seat body, and a perpendicular line ofa pivot point of the rotating shaft and the supporting frame and aground deviates from a perpendicular line of a pivot point of therotating shaft and the seat body and the ground; the seat body limitingmechanism comprises a limiting piece and a limiting matching piecematched with the limiting piece, the limiting piece is movably connectedwith the limiting matching piece, when the rotating shaft rotates, therotating shaft and the seat body rotate relatively, and the seat bodylimiting mechanism limits an included angle between the seat body andthe rotating shaft to be kept at a set angle.
 2. The rocking chair forchildren according to claim 1, characterized in that the limiting pieceand the limiting matching piece are movably connected in a relativedistance moving mode, and when the rotating shaft rotates, the limitingpiece and the limiting matching piece move relatively at a certaindistance so as to limit the included angle between the seat body and therotating shaft to be kept at a set angle.
 3. The rocking chair forchildren according to claim 2, characterized in that the limiting pieceis connected with the seat body, and the limiting matching piece isarranged on the supporting frame.
 4. The rocking chair for childrenaccording to claim 3, characterized in that a perpendicular line of aconnecting point of the limiting piece and the seat body and the grounddeviates from a perpendicular line of a pivot point of another end ofthe rotating shaft and the seat body and the ground.
 5. The rockingchair for children according to claim 4, characterized in that thesupporting frame comprises a base and a mounting box, the mounting boxis connected with the base, the limiting piece is a moving piece, thelimiting matching piece is a moving groove, when the rotating shaftrotates, the moving piece moves relative to the moving groove, themoving piece is arranged on the seat body, the moving groove matchedwith the moving piece is formed in the mounting box, and when therotating shaft rotates, the limiting piece moves relative to thelimiting matching piece at a certain distance along with the seat body.6. The rocking chair for children according to claim 5, characterized inthat a rotating piece is arranged on the moving piece, the rotatingpiece is able to rotate around the moving piece, and the rotating pieceis in surface fit with the moving groove.
 7. The rocking chair forchildren according to claim 6, characterized in that a motion track lineof the moving piece moving from a starting point to an end point of themoving groove is an arc line; a perpendicular line of a highest point ofthe arc line and a connecting line of two end points of the arc line isshorter than a perpendicular line of a highest point of an arc lineformed when the rotating shaft swings from a starting point to an endpoint and a connecting line of two end points of the arc line, and themoving groove is an arc-shaped groove.
 8. The rocking chair for childrenaccording to claim 6, characterized in that a motion track line of themoving piece moving from a starting point to an end point of the movinggroove is an arc line; a length of a perpendicular line of a highestpoint of the arc line and a connecting line of two end points of the arcline is same as the length of a perpendicular line of a highest point ofan arc line formed when the rotating shaft swings from a starting pointto an end point and a connecting line of two end points of the arc line,and the moving groove is an arc-shaped groove.
 9. The rocking chair forchildren according to claim 6, characterized in that when the rotatingshaft swings from a starting point to the end point, a motion track lineformed when the moving piece moves from the starting point to an endpoint of the moving groove is a straight line, and the moving groove isa linear groove.
 10. The rocking chair for children according to claim6, characterized in that a matching point of the moving piece and themoving groove and the moving groove are distributed on one side of therotating shaft.
 11. The rocking chair for children according to claim10, characterized in that a connecting line of a connecting point of themoving piece and the seat body and a pivot point of the seat body andthe rotating shaft is perpendicular to a perpendicular line of the pivotpoint of the seat body and the rotating shaft and the ground; theconnecting line of the connecting point of the moving piece and the seatbody and the pivot point of the seat body and the rotating shaft isperpendicular to a connecting line of a matching point of the movingpiece and the moving groove and the connecting point of the moving pieceand the seat body.
 12. The rocking chair for children according to claim8, characterized in that the moving groove is an inclined-plane groove,and the inclined-plane groove obliquely faces a rear direction of theseat body.
 13. The rocking chair for children according to claim 6,characterized in that the moving groove is an arc-shaped groove or anirregular wavy groove with alternating heights, and the moving groove isroughly and symmetrically formed in two sides of a projection line, onthe mounting box, of the rotating shaft when the rotating shaft rotatesto a highest position.
 14. The rocking chair for children according toclaim 13, characterized in that the moving groove is arranged close to apivot point of the rotating shaft and the mounting box.
 15. The rockingchair for children according to claim 1, characterized in that thedriving mechanism further comprises a sensor arranged on the drivingmotor and a reduction gear set connected to the driving motor, and thesensor is able to control the driving motor to continuously rotateforwards and backwards in a reciprocating mode so that the rotatingshaft is able to continuously rotate forwards and backwards in areciprocating mode, and the rotating shaft is obliquely arranged on amounting box.
 16. The rocking chair for children according to claim 14,characterized in that two rotating pieces are arranged on the movingpiece, and two moving grooves correspondingly matched with the tworotating pieces are formed in the mounting box.